Kōrero: Tephra layers – a record of past eruptions
Whārangi 2. Ngā whakaahua, ngā rauemi katoa
Me pēnei te tohu i te whārang
Richard Smith, David J. Lowe rāua ko Ian Wright, Volcanoes – Tephra layers – a record of past eruptions, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/mi/story/12518/media (accessed 11 June 2026).
He kōrero nā Richard Smith, David J. Lowe rāua ko Ian Wright, i tāngia i te 2 March 2009.